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Finding the Fourth Proportional to 93,351.92, 139,902.32 and 51,168.74

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Solution

The fourth proportional to 93,351.92, 139,902.32 and 51,168.74 is: 76,684.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,351.92 : 139,902.32 = 51,168.74 : x
  2. Step 2: Convert to fraction form
    93,351.92/139,902.32 = 51,168.74/x
  3. Step 3: Cross multiply
    93,351.92x = 139,902.32 × 51,168.74
  4. Step 4: Simplify right side
    93,351.92x = 7,158,624,865.89
  5. Step 5: Solve for x
    x = 7,158,624,865.89/93,351.92
  6. Step 6: Final answer
    x = 76,684.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.